Do NOT Learn Kubernetes Without Knowing These Concepts...

[@caitlinmclaren2695]

1. Containerization (like Docker) 2. Cloud Basics 3. YAML 4. Networking Basics 5. Linux

[@SirDevops]

Thanks , :)

[@shubhankarsharma5438]

thanks

[@manikandannj5890]

Thanks dude

[@krulig]

hero

[@yomajo]

Better than 13min ad I just watched.

[@phillipgilligan8168]

Docker is a huge prerequisite as well as docker compose and swarm to get you used to microarchitecture, how networks function and communicate as well as services in between containers, and swarm to get you used to orchestration. If you do those first kubernetes will be a lot more familiar to you.

[@manojkumar-jt3fw]

Travis, u inspired me 5 months back to go on Devops journey. I am using udemy to prepae for Devops job. I completd : 1.Linux Administrator course : Imran Afzal 2.Bash scripting----> Narendra 3.Git --> Bogdan stashuk 4.Maven --> Bharath Thippireddy As of now, trying to complete AWS [Fundamentals + Solutions Architect Associate] by stephen . Next will b : SonarQube---->Nexus---->Docker--->Kubernetes--->Terraform--->Ansible---->Prometheus & Graffana---->Python

[@goutham9831]

Bro any chance of getting job for you with current knowledge? my issue is I will learn for 4-5 months then i gave up and i have to start all again. I lost hope too. I think we have to learn a lot to get into DevOps junior roles too

[@manojkumar-jt3fw]

@@goutham9831 wat tools have u completed till now ?

[@Aditya-rl1nc]

​@@goutham9831😮

[@manojkumar-jt3fw]

@@goutham9831 prepare ur own notes. Keep revising it I am about to finish Stephen mareck solution architect associate. Docker kubernetes terraform Ansible r left now. 4 months.

[@isaiahbundi7207]

🎉

[@thewarrior9827]

I’m Kubernetes certified CKA & CKAD I’m fully agree with you about the prerequisites and also something really important to emphasize is mastering Linux before going to K8s because this is the only OS Kubernetes deals with

[@TravisMedia]

100%. Are you for that CKS now?!?! I've been putting off the CKA now for like 4 years, myself. 😆

[@thewarrior9827]

@@TravisMedia I surely will 😊

[@jamesmiths72]

I am studying an intro to containers and I would lije to know in your opinión it is worth certification in containers. Are there many jobs oportunities? Thanks for your answer.

[@dave6012]

GIGA CKAD

[@geebee4166]

Have you been able to get a job because of your cka or ckad?

[@TerenceKearns]

I used to be a PHP developer 20 years ago. I had no idea I'd be interested in this stuff but I seem to be. It's like lego but cooler. Your videos are very clear, concise, and most of all.... WELL PACED! nice one my man.

[@UrbanGuitarLegend]

Definitely like legos... that's exactly the way I think about it.

[@TurntableTV]

One of the best decisions I made lately: subbed to this man's channel. I love the practical approach he takes in sharing the knowledge.

[@nic_4849]

Awesome vid. I'm a sales rep at leading k8s provider and here I am researching containers & k8s from other voices - shows the complexity! Also, regarding networking -- this is hands down where we get held up the most with customer education / onboarding from poc to hardened dev/prod environments . Hands down the most gotchas here. Frustratingly so, but hey opportunities!

[@Nobody-eg4bi]

Where I work, we abandoned docker and started using Podman about a year ago.

[@DroisKargva]

Why?

[@suyashnalawade8272]

That's basically the same thing I guess.. It has a lot of enhancements though and the best thing is it automatically starts up when you start the the laptop/computer. No more systemctl start docker 🥲

[@igorushka]

Only principal software engineer knows, probably.

[@SweetMelon-sd1qu]

podman is essentially same as docker but has rootless advantage and will most likely be the replacement for docker

[@Nobody-eg4bi]

@@SweetMelon-sd1qu you nailed it, it is more secure than docker

[@fevets51]

Sorry to be picky and I am sure you're aware of this really - but at 3:20 you explain "so when you run the image its going to follow those steps, it adds your package.json, run npm install, copy over your code.." - it has already done this to build the image, when the image is run a container from the image is created and it runs the ENTRYPOINT and/or CMD instructions to run the desired application

[@dacam29]

I would include learning Docker Compose as the second step. It's a highly effective method for running containers locally, regardless of whether they're configured to run in a Kubernetes cluster or other environments.

[@warhawk8511]

I didn’t understand anything but the feeling they were pleasant🤩

[@concept_la]

Thank you, i'm a network engineer taking on the devop role at our company. At the moment I am struggling to deploy apps on a eks cluster. I will be checking out the udemy course you recommended.

[@NelsonCrespo-cn1en]

Hi, I am on that course right now, amazing option, from my point of view the best one I've ever seen about Kubernetes Administration.

[@shubhojitdasgupta6901]

Same situation here. Familiarity with Helm is also needed.

[@TravisMedia]

Yes!

[@RM-xr8lq]

google has a paper on Borg that is a good reading to understand some of the design decisions behind kubernetes

[@Sakshivjain20]

can you share the link please?

[@neosekaleli1609]

you are quickly being my favourite tech tuber , you make great content travis

[@scottamolinari]

I've been working with k8s as a hobby for over 2 years now. I was looking for (and still working on) a way to run a platform I'd like to commercialize at some point. And, although I have a successfully running k8s cluster with like 30+ apps running, and I'm heading to my own very opinionated platform. I still wouldn't ever call myself an expert. I'm a jack of all trades and master of none. These basics are definitely important, but there is a whole lot more.

[@scottamolinari]

That being said, I think a general understanding of what k8s means in terms of not only being an orchestration management system for containerized apps is important, but also understanding the fluidity between development, devOps and turning k8s into a PaaS for your company, is hugely important too. You could theoretically have all development outside of k8s, however, I know this is missing out on taking full advantage of k8s. And, having all dev'ing done outside of k8s is going to be a constant source of uncertainty, when things go wrong. Is the root cause the dev environment or is it the k8s environment? Yes, containers are supposed to help alleviate this concern, but they don't really in the end. The only way to remove that big question is to have the code being developed actually running in a real cluster with all the accessible services too. Once you see this path and can offer it to devs in an automated way, you also increase development velocity manyfold. It's why SRE is being renamed platform engineer slowly but surely. And yeah again, I'm just doing this as a hobby. But, I love it. 😁

[@nishanth-saka]

"Not knowing Networking Concepts is nothing to be ashamed of.." - tears in my eyes, Yuge weight off my chest.

[@niravassar8297]

Thanks Travis. I went to that udemy class and doing the absolute beginner class. It’s really good.

[@UrbanGuitarLegend]

Podman and crio is a good option. Podman has more useful command line options as a client than directory. Also you can run as a normal user and not be root.

[@H4KnSL4K]

@3:18 - "When you run that image, it's going to follow those steps" Umm.. No, I am pretty sure the Dockerfile is run only when creating the image, not when *running* the image (creating a container, from the image, but not using a Dockerfile). If you have an image, it doesn't need to copy package.json (for instance) into it from anywhere .. and you have the image, probably not the source directory that you used to build the image. (so where would you copy it from??)

[@drek177]

I came here to say this. What he is stating is simply not correct, The whole purpose of this step is to build the software and package it up, not copy source files and make the container build the artifacts each time - that would be a huge resource waste.

[@mr2ti41]

Thanks for confirming. Learning docker myself and this is what I understood too, but when I watched what was said in this video I started to question if I had misunderstood the concept.

[@CalifornianViking]

Thank you. This is a great video. Well explained and to the point. There is one topic that i feel is missing in all these container videos, it is an explanation of the cost of containerization and its overhead. I often see containers being used as a mechanism for parallelism. The starting point is often a single threaded language like JavaScript or Python. However, containers are really poor (10 to 100 x) alternatives to multi-threading and software processes. I get that scale out requires less commitment than scale up, but if you need 50x more hardware, then you need a lot of hardware.

[@jWork-iw6lz]

We had a VM that was scaling up and ended up costing us a lot of money. It was doing a lot of work in parallel. We did the rearchitecture to containers and succeeded in lowering the cost of operation by literally 10x

[@k-STL-2023-zk6wx]

perfect timing! I was just looking for this. Keep up the great work!

[@akshar234]

Thank you for this video, I was looking into learning kubernetes. I like your videos you deserve more subs man :D

[@nwokobia]

Outstanding. Thanks for keeping it short and to the point.

[@ЛевЦарьЗверей51]

Thank you! Even with upper-intermediate English I can understand all of the ideas about DevOps ways. Awesome channel

[@rickbhattacharya2334]

I learnt kube from a developer perspective in around 6 months, plus additional 1 months for Jenkins and additional CI/CD stuff. I am now learning something like ansible and planning for AWS. 😅

[@ordinarygg]

congrats! you are on 1/20 step to understand how everything works

[@DroisKargva]

@@ordinaryggso true 😂 IT hole is real

[@alfredoolmedo744]

Great video, YAML stands for "Yet Another Markup Language"

[@fhreakzzz]

Thank you so much for the video, it was very helpful!! I'm so happy that I found your channel, your content is amazing!! Keep it up 💗⭐

[@wly185]

very clear explanation thank you so much 🥰

[@SriSri-vm4nq]

Travis, watching your videos gives me good motivation. I also started learning new stuff!! thanks 👍

[@busyrand]

Holy Smokes... I didn't know it was this involved... I'm halfway home in terms of the requirements, but the stuff about networking will absolutely need to be learned....

[@murugesan5393]

Great info for starting k8s Thanks for k8s beginners roadmap

[@xelaksal6690]

Brilliant video! Thanks!

[@SupriyaBaruQA]

Gem of a video. The perfect one for my learning path. 🙏

[@sarvamsuperapp]

Hi Good One, But I think for some one to even understand containers, they should not go use docket first, with out docker they should try to containerize a process in their linux using cgroups and namespaces linux kernel concepts which is infac he fundamental concept behind containers and then kubernetes is just a orchestration and management of these containers.. with some intelligence for load placing etc... across nodes... or machines ( physical.. or virtuall.. )

[@karenorgan6203]

Clear English on the course and is 84% off for the next 10 hours, wish me luck

[@bagaspermana88]

You teach from fundamental and I loved it. It gave me a blueprint abt how to understand something in this case kubernetes in the big picture

[@mukundkumar3700]

Thank you for sharing this to learn Kubernatares ❤

[@foodie_ka_ghar-ll3cq]

Thank you for this video i wanted to learn all these concept and your video gave me a starting point for that.

[@pandurangpatil9836]

Thanks Travis for the detail Video. it helps from where we starts.

[@rentsy3444]

Having a silky smooth voice is the #1

[@SehicNijaz]

Thanks man. Awesome video. Keep it up!

[@sidheekmohammed9361]

Very informative, thanks

[@alsto8298]

Content begins at 2:10. You are welcome.

[@zeus783]

Very clear overview!

[@adeosinowo7187]

Perfect timing. Thank you.

[@rajchauhan-xh3vo]

such great information ❤, well you got a new friend. Thanks @Travis

[@djfago6240]

Thank you sir. you are always on point. u got my sub

[@rakeshvarma1907]

@Travis I believe there is a mistake in your explanation with regards to Docker @3:20. When one creates a container out of the image, all the necessary dependencies/libraries are already baked into the image, there is no re-running of those instructions when a container is started. If everything runs again and needs to install the libs/dependencies, there is no point of creating the image. One can just use a shell script file as a start up script.

[@ThinkScienceCanada]

amazing video, thanks!

[@NelsonCrespo-cn1en]

Amazing info video, completely agree to you Travis. Thanks a lot.

[@Unchurlish]

Ctl as control feels a lot more natural to me. Ctl as cuttle seems like raised-by-wolves speak.

[@adenugbamicheal2140]

Came at the right time. Thank you

[@thisisaproxy9986]

concept 1 doesn't start till @2:00

[@Wassap133]

Great information Thank you for this video for us learning kubernetes

[@karlinbarnes3266]

What are your recommendations of resources for learning the terminal?

[@khemw.9510]

Thank you, this is really helpful

[@williamngasso8436]

Travis always has helpful tips..Let's Gooooooooo

[@cbaesemanai]

1. Few workloads need kubernetes.

[@calicomics701]

And yet everyone ive interviewed recently requires it 🙄 Lots of small businesses will just loose money running k8 setups because they think its needed...

[@georgecagle3829]

Great video, thank you!

[@hectorhernandez7389]

Thanks for all you do! 💪🏽

[@mohanadzaki3450]

3:10 just a little mistake in the video. Image only runs the command "CMD" steps not the build steps too

[@atoms.channel]

great video but I thought it was going to be learning about "Kubnernetes" not Kubernetes... you fooled me :) seriously though, truly great and appreciated video. Thanks.

[@rajeshramakrishnan4121]

Hey nice one ! Any prompts on how to go about getting a legacy app containerized..

[@RajaKumar-wv9xh]

Loved it bro

[@shergillmanav2349]

Great vid Travis! In the same boat as you were haha, need to deploy containers in kubernetes for work😂

[@aristotelesfernando]

tank you for the course tips

[@njoeror]

Should you start with Ultimate AWS Certified Cloud Practitioner CLF-C02 course or can you start directly with Certified Kubernetes Administrator (CKA) with Practice Tests course on udemy ? I don't intend to be an expert, just learn how to deploy my apps on docker and kubernetes and for future jobs

[@akkiee01]

Thank you !

[@infamismworldwild6248]

Thank you

[@randomando9953]

Self delete isn't the best option. Policies that crush one party but prop up the other party will always test the sanity of the one being crushed. Can't delete policy.

[@DanSimiao]

I'm a software engineer and I have a question: why are companies starting to demand Devops skills from software engineers?

[@aditya007ray]

Because they don’t understand what they do, what they want, and what went wrong in previous projects . Nothing went wrong btw, they just took men who lie in theory CV and girls who look h*t and s**y … instead of good learned men and women

[@tannerdriscoll6699]

Cause merging dev and ops is the purpose if devops

[@iamvtor]

Concept 1 is actually around 2:10

[@mosesmbadi4158]

Hi Travis. Amazing content. I wanted to inquire on your video setup. Would you be willing to answer a few questions?

[@stephenmodiba8969]

If only u could do a video where u explain everything with real situations, like say in order for KZbin to run we need kubernetes as the middle man

[@ordinarygg]

If you have less then 100 servers and < 1000 containers don't even bother go into k8s. Most of orgs even some medium-big businesses don't need such complexity to maintain their MONOLITH-microservice architecture)

[@faisalraj6654]

Hi Travis. Thankyou for the Video. Even though, I understand the Docker / Kube basics, how would you relate this with Serverless Architecture using Lambda Functions? I started to learn SAM but cannot able differentiate in terms of which one Supersedes when creating server or deploying Apps? Any general guidelines would be helpful. Thankyou.

[@gregshonle2072]

IMO, Lamdas/Serverless Architecture are a completely different ways to create solutions. A Lambda is an ephemeral process that does not reside on a server, nor in a container. It is a complete, standalone stateless application; the only way to have data persistence is to have the Lambda send whatever data to an external store. If you need to orchestrate Lambdas, Step Functions are what is usually used. Containers, on the other hand, can persist as long as you want, and can be more heavy-weight. Since containers can scale up and down, external stores can be mounted for data persistence.

[@victorpinasarnault9135]

Travis media? I was tought that was other channel.

[@irisluxton]

I love how I heard him said "kube cuddle"

[@ELCybermatador]

Great video

[@swaroopb1526]

Thank you

[@cabrelngako8877]

nice for beginner

[@John83118]

I'm absorbed in this content. I had the privilege of reading something similar, and I was absorbed. "Mastering AWS: A Software Engineers Guide" by Nathan Vale

[@jackz.5656]

thanks, helpful

[@mulhamnokia1951]

thank you

[@neoTriny]

damn, nicely explained

[@SunsetNova]

Thank you ❤

[@rajeevrasa]

Thank you.

[@ai.aspirations]

Thanks

[@alikhalife3177]

My company deployed kubernetes on premise. Whats the main difference by running and administraiting an application in the cloud and on premise in a own big data center of the company?

[@mishvik]

BRAVO!

[@BrianWoodruff-Jr]

So, is there overlap between Kubernetes and docker-compose?

[@chalimsupa6603]

great info

[@marksmith2540]

YAML aint a superset of JSON ;-)

[@JabYoFace]

What makes AWS EKS a “managed service?”

[@venkatayogakedarasarvan4869]

Woww. Thanks

[@hansfrans761]

Do NOT watch youtube videos telling you how NOT to learn something. Those people don't know you, they don't know how you think or work or learn best. You can learn all these things while learning about Kubernetes, if you choose to do so. For me, that was the right approach. For you, it might or might not be. But no KZbinr will be in a position to tell you that without knowing you. These content creators are smartassing you for clicks

[@traian.norbert]

I think you just saved me from a decent year of walking in hell. Thank you Travis, great content!

[@codeman99-dev]

10:41 I very much disagree. Use the actual command as doing so makes copying examples painless. Should you alias kubectl as `k`, you now need to manually edit your example every time you want to share a command in a document, over chat, or when creating a bug report. Alias flags you want to (nearly) always pass. Only shorten commands if you know you won't be sharing examples very often. I alias `n` to nano for example.

[@Habbibou]

I wanted to comment about alias too. You only create expensive code that is not readable thus harder to maintain. For instance, using powershell commands with its splatting feature is way better than bash commands with so many letters. Alias is maybe only useful for writing faster snippets of codes (you can write fast with autocompletion too).

[@AnvarRustamov]

Hi there. i am now a CCNA, RHCSA, RHCE and i have knowledge in WinServ Do you recommend me going through AWS then some basic Docker and then to CKA?